Washable black silk piece goods and process of dyeing them



Patented Dec. 15,1925.

UNITED STATES.

PATENT OFFICE.

JOB EYE SEYEB, OFHAWTHORNE, NEW JERSEY, ASSIGNOR '1'0 STANDARD SILK DYE- ING 00., OF PATEBSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

wasmm BLACK SILK rmcn GOODS AND rnocnss or mmn'm mama I 1m Drawing. Original application filed December 1, 1922, Serial No. 004,390. Divided and this applicatlon filed February 24, 1923. Serial No. 821,075.

washable black silk, and more particularly to awashable black fabric which has been dyed in the form of piece goods and it relates also to the process of producing and dyeing such silks and silk fabrics.

This application is a division of my original application Serial Number 604,390, filed December 1, 1922, Patent Reissue No. 16,016, and it particularly covers process -#5 as described "in my original application.

For producing a black on silk'I proceed as follows: Silk piece goods are dyed in a bath .composed of five hundred gallons water, by weight of fustic extract, 10% by weight of hematine extract (oxidized logwood). The goods are worked in the liquor at the boiling temperature for twenty minutes, and then to the same liquor are added 25% by weight of black iron, 4% by weight of blue stone, and 20% by weight acetic acid (to dissolve precipitate in the I bath). The goods are worked at the boiling 'tem erature for one hour, and are then was ed well. The goods are now treated in another bath composed of -five hundred gallons boiling water, 30% hematine extract, and fifty pounds soap, and they are worked therein for one hour and then washed. The next step consists in treatin the goods in a bath of five hundred 'ga ons water 'at 160 F.,'containing tannic acid in the pro portion ofsix pounds tannic acid per two hundred fifty gallons of dye liquor. This is, followed by the tartar emetic treatment as in rocess #3, namely, four and one-half oun s of tartar emetic per two hundred fty gallons of dye liquor. The final dyed goods are given two cleansing soap baths at a well and acidulated.

There is thus produced a washable black which will not impart a black or dark color toa washing soap liquid below 160 F. or-

boiling temperature, and .then washed thereabouts. A" characteristic of my black silk piece goods is that they will not bleed in cold water, that is, impart black thereto, nor will they readily show -the marks and effects of perspiration. They maybe washed together with silk, cotton, artificial silk, wool, etc. without staining them, the temperature being about 110 F. They also have excellent fastness to light and ironing While my silk piece goods have been described as being of unmixedsilk, it is also possible to makemixed silk goods, such as silk and cotton, by-the above. described.

It is to be understood that where exact temperatures and working conditions process.

are given, it :is merely for the purpose of presenting a preferred-embodimentand giving accurate directions, as variations may be made according to circumstances.

. As manya parently widely different embodiments o my invention may be made without departing from the s iritthereof, I do not intend to limit mysel? to any articular embodiment except as indicate in the following patent claims.

Iclaim: 1. The process of producing 1 washable black silk piece goods comprismgd eing them black in a hot liquor, andthen ing the d e withtannic acid and tartar emetic. 2. The process of producin washable black silk piece goods comprising -'d eing them blackin a hot. liquor, and'then' xing the d e with tannic acid and tartar emetic, and t ereafter cleansing the goods in a hot soap. liquor.

3. The process. of producing washable black silk which comprises dyemg it black with a logwood extract and an iron salt in a continuously boilingliquor, and fixing the dye on the silk in a 'hotliquor containing tannic acid.

4. The process of producing washable black silk which com rises dyeing it black in a continuously boi 'ng liquor, and fixing the dye on the silk and treating the silk in a hot soap liquor.

5. The process of producing washable black silk E'ece goods which'comprises dyeing it blac witha logwood extract and an iron salt in a continuously boiling liquor, and fixing the dye on the silk in a hot liquor.

. 6. The process of producing washable black silk piece goods which comprises dyeing it black with a logwood extract and an iron salt in a continuously boiling liquor, and fixing. the dye on the silk in ahot liquor containing tannic acid. I

7. The process of producing washable black silk piece goods Which comprises dyeing it black in a continuously boiling liquor, and fixing the dye on the silk and treating the silk in a hot soap liquor.

8. The process of producing washable black silk piece goods which comprises working the goods in a boiling bath containing logwood and fustic extracts, working them in a boiling bath containing hematine extract and soap, treating them with hot tannic acid and tartar emetic, and cleansing them in a hot soap solution.

9. The process of roducing washable black silk piece goor 's which comprises working the goods in a boiling bath containing fustic extract and a logwood extract,

adding black iron, blue stone, and acetic acid, working them in a boiling bath contalnrn a logwood extract and soap, treating t em with tannic acid and tartar emetic, and cleansing in a hot soap solution. 10. The process of producing washable black silk pieee'goods which comprises dyeing the goods in a bath containing fustic extract and a logwood extract, working the goods at a boiling temperature, adding black iron, blue stone, and acetic acid to the liquor, working the goods at a boiling temperature, washing, working them in a boiling bath containing a logwood extract and soap, washing, treating them with tannic acid and tartar emetic, cl'eansin in a boiling soap solution, and then washing and acidulati ng.

11. The rocess of producing washable black silk plece goods which comprises dye- "ing the goods in a bath composed of five hundred gallons water, 30% byweight of fustic extract and 10% by weight of a logwood extract, working the goods in the liquor at a boiling temperature for twenty minutes, adding to the same liquor 25% by weight of black iron, 4% by weight of blue stone, and 20% by weight acetic acid, working the goods at a boiling temperature for one hour, washing, treating in another bath composed of five hundred gallons boiling water, 30% logwood extract, and fifty pounds soap, working them therein for one hour, washing, treating thegoods in a bath of five hundred gallons water at 160 F. containing tannic acid in the proportion of six pounds tannic acid per two hundred fifty gallons of dye liquor, treating with tartar emetic in the proportion of four and one-- half pounds per two hundred fifty gallons of dye liquor, cleansing in two soap baths at a boiling temperature, and then washing and acidulating. 1

12. Black silk piece goods dyed in the piece and having the characteristics of fastness to washing in luke warm soap water, evenness in shade, and of not bleeding in cold water or discoloring non-silk fibres.

13.-Black silk iece goods dyed in the piece and having t e characteristics of fastness to washing in ,luke warm soap water, evenness in shade, and of not bleeding in cold water or discoloring non-silk fibres, and having antimony in its fibres.

In testimony that I claim the foregoing, I have hereunto set my hand this 21st day of February, 1923.

JOSEPH SEYER. 

